BC Air Brake Practice Test 03

Taking the BC air brake practice test can be a nerve-wracking experience for those wanting to obtain their air brake endorsement. However, with proper preparation and practice, passing the official exam with flying colors is achievable. It is recommended to use certified training materials and take advantage of online practice tests to gain an in-depth understanding of the air brake system and regulations.

BC Air Brake Test 03

1 / 30

In a dual air brake system, if one of the system totally fails, is the driver able to make a controlled stop?

Yes

Not unless the parking/emergency brake is also applied

Yes, but it will be much longer

2 / 30

In a dual air brake system, where is the air from the primary tank applied to?

To both front and rear axle brakes

To whichever brakes need to be applied first

To the front axle brakes

To the rear axle brakes

3 / 30

At what point does the low-air warning device come on?

When air pressure drops below 50 psi

When air pressure drops below 20 psi

When air pressure drops below 60 psi

When air pressure drops below 80 psi

4 / 30

Other than a leak, what could cause low-air pressure?

If the compressor is overheating

If you apply the brakes repeatedly and have used up the air supply more rapidly than the compressor can replenish it

If the compressor is too small

If the air lines are too thin

5 / 30

What is another name for manually releasing an applied spring parking brake?

Caging

Pushing

Sweeping

Pulling

6 / 30

What is the second type of parking brake in an air brake system known as?

Cable

None of the above

Safety actuator

Air-over hydraulic

7 / 30

What is the purpose of the relay valve?

To push air through the lines

To relay computerized messages from the brakes to the gauges

To reduce the lag time when the brakes are applied, and when they're released

To help apply the brakes quicker

8 / 30

If the low-air pressure warning light comes on, what should you do?

Pull over and stop

None of the above

Allow the compressor to build up more air before you stop

Keep going but allow five times more to stop

9 / 30

What are the problems using the air brakes for parking?

Not enough air to hold the vehicle

Any loss of air pressure and a possible rollaway collision could happen

The air will eventually leave the lines

None of the above

10 / 30

What's another name for a drain valve?

Drain stems

Drain holes

Drain cocks

Drain releases

11 / 30

Many vehicles have a single gauge with two needles, indicating the pressure in which reservoirs?

Supply reservoir and secondary reservoirs

Supply and primary reservoir

Primary and secondary reservoirs

Supply reservoir only but use for psi and kPa

12 / 30

Where is the relay valve typically installed?

Between the reservoir and the rear brake chambers

Right beside the quick release valve

In front of the foot valve

Beside the governor

13 / 30

What is the purpose of a dual air brake system?

They are in all new vehicles

No advantage whatsoever

Works better with tandem wheels

It allows the brake system to be divided into two independent sections with each section having its own supply, delivery, and exhaust ports

14 / 30

How long have dual air brake systems been in use?

Since the mid-1970'

The last ten years

Since early 2000's

Since 1992

15 / 30

Some older vehicles are equipped with a low-air warning device near the top of the windshield that drops into the driver's view when air pressure drops. What is this?

A woggle

A mig-mag

A toggle

A wig-wag

16 / 30

Which reservoir usually has the most contaminants in it?

The supply reservoir

The secondary reservoir

The primary reservoir

They all have the same amount

17 / 30

What is the most common type of parking brake in an air brake system?

The cable parking brake

The hydraulic parking brake

The spring parking brake

The air parking brake

18 / 30

Does the foot control valve have the ability to maintain the application pressure that you've chosen, even if there is a small leak downstream from the foot valve?

Yes

Just for 2 to 3 seconds

Up to 5 seconds maximum

19 / 30

What is meant by compounding air brakes?

When a service brake application is made with the park brake still applied

When the park brake is released at the same time as the service brake

When the park brake is not working

When the service brake is not working

20 / 30

What happens when the driver releases the foot valve?

Air pressure in the brake chambers exhausts into the atmosphere

Air pressure in the brake lines remains constant

Air pressure build back up

None of the above

21 / 30

If there are two reservoirs, how many pressure gauges are there?

Four

Two

One

Three

22 / 30

What type of vehicle are safety actuators typically used on?

Large tractor trailers

Buses and highway coaches

Dump trucks

Fire trucks

23 / 30

What is another name for the foot brake pedal?

Push rod

Thread

Treadle

Bar

24 / 30

What is the name of the line that air flows from the foot valve to the foundation brakes?

Governor line

Discharge line

Supply line

Delivery line

25 / 30

What does a quick release valve do?

It allows the brakes to release quickly and fully, by allowing the pressurized air to exhaust near the brake chambers

None of the above

It stops the flow of air going into the reservoirs

It controls the air flow

26 / 30

When should caging of park brake actually be done?

Every 500 km

Prior to leaving on your daily trip

Only in an emergency

Once you've traveled 160 km during that trip

27 / 30

In a dual air brake system, when brakes are applied, which section activates first?

Both sections are activated

Secondary tank first

Primary tank first

It doesn't matter as long as it works

28 / 30

What do one-way check valves do?

They allow air to flow in both directions

They allow air to flow from the supply reservoir to the primary and secondary reservoirs

None of the above

They allow air to be exhausted through ports

29 / 30

How often should you drain reservoirs?

Every 48 hours

Daily

Weekly

Monthly

30 / 30

Typically, where is the low-air warning device connected to?

The supply reservoir

The biggest tank

The primary reservoir

The secondary reservoir

Your score is

BC Air Brake Practice Test 03

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